Engine installation harness for installing a Cummins ISX engine (CM871 engine electronics) into a Pre-NAMUX 1999-2003 Peterbilt truck with Cummins CM570 chassis electronics.
NOTE: This harness is only compatible with a Cummins CM570 based Peterbilt Pre-NAMUX (analog) electronics chassis. If you are uncertain of your exact chassis electronics please call for fitment confirmation.
